Exercise bar



FIG. 1 is a perspective view of an exercise bar, showing my new design;

FIG. 2 is a reduced top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is an enlarged side elevational view thereof; and,

FIG. 6 is an alternate perspective view thereof.

The broken line portion of FIGS. 5 and 6 are for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an exercise bar, as shown and described. 